Exams › NEET › Physics

The field due to a long straight wire carrying a current I is proportional to

1. I
2. 3 I
3. I
4. I / 1

Correct answer: I

Related NEET Physics questions

• The magnetic field of a given length of wire carrying a current for a single turn circular coil at centre is B, then its value for two turns for the same wire when same current passing through it is :-
• Field at the centre of a circular coil of radius r , through which a current I flows is
• The magnetic field inside a long solenoid is -
• A long copper tube of inner radius R carries a current i . The magnetic field B inside the tube is
• The magnetic induction at any point due to a long straight wire carrying a current is
• The earth's magnetic induction at a certain point is . / 10 7 2 5 m Wb   This is to be annulled by the magnetic induction at the centre of a circular conducting loop of radius 5 cm . The required current in the loop is

⚔️ Practice NEET Physics free + battle 1v1 →